Studi pengaruh temperatur cetak terhadap kualitas Tin Shot Rounded Ingot Banka (99,92% Sn) serta perbandingan porositas dengan Ingot Babbit (87-90% Sn) = Study of casting temperature effect on quality Tin Shot Rounded Banka Ingot (99.92% Sn) and porosity comparison with Babbit Ingot (87-90% Sn)